The LGM -118A Peacekeeper is one of many static displays that you can see up close in our 9 acre Heritage Park. It served as the Air Force’s most powerful, accurate and technologically advanced Intercontinental Ballistic Missile (ICBM) deterrent. The Peacekeeper was lighter than previous ICBM’s and it could deliver a number of nuclear warheads on different targets at the same time. As a result of the START ll treaty, the United States deactivated all 50 LGM-128A’s between 2003 and 2005. Heritage